Live points verified daily against the official ranking: 998 of 1,000 in the ATP top 1,000 match to the point. How we check ›
Rei Sakamoto, a 20-year-old Japanese professional, holds the #163 spot in the live ATP rankings with 344 points. Sakamoto moved up 2 places in the most recent release. Sakamoto is a right-hander with a two-handed backhand who stands 193 cm.
Sakamoto was born in Nagoya. Sakamoto carries an ELO rating of 1583 over 150 rated matches, strongest on hard courts (1569). Sakamoto's next scheduled points drop is 6 points from Lexington Challenger on July 27, 2026, when that result rolls off the 52-week ranking, and 18 results currently count toward Sakamoto's ranking total.
<a href="https://atprank.com/player/rei-sakamoto"><img src="https://atprank.com/api/card/player/rei-sakamoto" alt="Live tennis ranking — atprank.com" width="640" height="180" /></a>Live card — updates automatically. Free to embed with the atprank.com link.
From matches in our dataset (2023–present).
Biggest upset victories — matches Rei Sakamoto won as the betting underdog, ranked by pre-match odds.
Jurij RodionovYokkaichi Challenger 2023 · 6-4 6-4@9.80def. 
Bruno KuzuharaM15 Orange Park 1 2023 · 7-6(4) 4-6 6-3@4.25def. 
Kamil MajchrzakMiami Open - Miami 2025 · 6-4 6-7(5) 6-2@3.72def. 
Kristjan TammM15 Palm Coast 1 2023 · 7-6(3) 2-6 6-3@3.65def. 
Adam WaltonJapan Open Tennis Championships - Tokyo 2025 · 6-2 6-4@3.10Rei Sakamoto’s wins over the highest-rated opponents, by the opponent’s pre-match ELO (since 2023).
Kamil MajchrzakMiami Open - Miami 2025 · 6-4 6-7(5) 6-2ELO 1716def. 
Marat Sharipov (RUS)Nonthaburi 1 Challenger 2025 · 7-6(3) 2-6 6-4ELO 1675def. 
Giulio ZeppieriAustralian Open - Melbourne 2026 · 6-2 6-2ELO 1660def. Zachary SvajdaMutua Madrid Open - Madrid 2026 · 7-6(9) 6-1ELO 1659def. 
Liam DraxlCary Challenger 2025 · 6-1 6-4ELO 1648Last match Jun 14, 2026 · last win May 13, 2026
2 points behind Luca Nardi at #162.
Points needed to reach each tier, assuming other players’ totals stay the same.
Valid results outside the best-18 that don't count toward the ranking right now — they promote in as counting results drop off.
Rei Sakamoto's most-played opponents. Open any rivalry for the full meeting record and a win-probability prediction.